Compatibility <FlexCAN_T4.h> and <NativeEthernet.h>

[Cand0o0]

Hi all,

Thank's a lot for your work.
I'm currently on a Teensy 4.1 and I'm trying to use <FlexCAN_T4.h> and <NativeEthernet.h>.
I used the code of mjs513 and it's worked for me too.

I want to communicate with my teensy by Ethernet with IP protocol, using <NativeEthernet.h>.
When I use the librairy separatly, it's work, but when I use it together, nothing work.

Any ideas ?

My code below :

// -------------------------------------------------------------
// CANtest for Teensy 4.0 using CAN2 and CAN2 bus
#include <FlexCAN_T4.h>
#include <NativeEthernet.h> // librairie ethernet pour teensy

/IP****/
#define IP1 10
#define IP2 0
#define IP3 20
#define IP4 130
/********************************************/

#define debug(msg) Serial.print("["); Serial.print(FILE); Serial.print("::"); Serial.print(LINE); Serial.print("::"); Serial.print(msg); Serial.println("]");
void debug_pause(void)
{
Serial.print("Paused...");
while (!Serial.available());
while (Serial.available()) Serial.read();
Serial.println("Restarted.");
}

FlexCAN_T4<CAN1, RX_SIZE_256, TX_SIZE_16> Can1;
FlexCAN_T4<CAN3, RX_SIZE_256, TX_SIZE_16> Can2;

static CAN_message_t msg;
static uint8_t hex[17] = "0123456789abcdef";

// -------------------------------------------------------------
static void hexDump(uint8_t dumpLen, uint8_t *bytePtr)
{
uint8_t working;
while( dumpLen-- ) {
working = *bytePtr++;
Serial.write( hex[ working>>4 ] );
Serial.write( hex[ working&15 ] );
}
Serial.write('\r');
Serial.write('\n');
}

// -------------------------------------------------------------
void setup(void)
{
Serial.begin(115200);
int iSerialTimeout = 1000000;
delay(100);
while (!Serial && (iSerialTimeout-- != 0));
debug (F("start setup"));

Can1.begin();
Can2.begin();
Can1.setBaudRate(1000000); //[COLOR="#FF0000"]// I like to set the baud rates just to be on the safe side[/COLOR]
Can2.setBaudRate(1000000);

// t4 missing msg.ext = 0;
msg.id = 0x100;
msg.len = 8;
msg.flags.extended = 0;
msg.flags.remote = 0;
msg.flags.overrun = 0;
msg.flags.reserved = 0;
msg.buf[0] = 10;
msg.buf[1] = 20;
msg.buf[2] = 0;
msg.buf[3] = 100;
msg.buf[4] = 128;
msg.buf[5] = 64;
msg.buf[6] = 32;
msg.buf[7] = 16;
debug (F("setup complete"));
//debug_pause();

/********** TCP **********/
byte mac[] =
{
0xDE, 0xAC, 0xDE, 0xEF, 0xAE, 0xEC
};

IPAddress ip(IP1, IP2, IP3, IP4); // adresse ip de la teensy
IPAddress subnet(255, 255, 255, 0); // netmask de la teensy
IPAddress gateway(IP1, IP2, IP3, 1); // gateway de la teensy
IPAddress myDns(IP1, IP2, IP3, IP4); // adresse dns de la teensy
//Ethernet.macAddress(mac);
Ethernet.MACAddress(mac);
//Ethernet.begin(ip,netmask,gateway,myDns); // initialisation des donnee ethernet avec la librairie QNEthernet begin(ip,mask,gateway,dns)
Ethernet.begin(mac, ip, myDns, gateway, subnet); // avec NativeEthernet
}

// -------------------------------------------------------------
void loop(void)
{
msg.buf[0]++; //[COLOR="#FF0000"] //since you are in a loop i just incremented each time in stead of doing it 5 times[/COLOR]
Can1.write(msg); //[COLOR="#FF0000"] //you could do it your way as well[/COLOR]
Serial.println("T4.0cantest - Repeat: Read bus2, Write bus1");
CAN_message_t inMsg;
if (Can2.read(inMsg)!=0) //[COLOR="#FF0000"]// Changed this to if as as opposed to while - the way you had it just gets stuck since you haven't even sent a message yet[/COLOR]
{
Serial.print("W RD bus 2: "); hexDump(8, inMsg.buf);
}
delay(20);
}

[Cand0o]

It's ok, you can close this issue.